Tank Autofilling

component = require("component")
transposer = component.transposer
sides = require("sides")
term = require("term")

function someFunction()
    if amo < (cap / 100 * 50) then
      transposer.transferFluid(sides.east, sides.north, 500)
      term.setCursor(1,3)
      print(amo)
    else
      term.setCursor(1,3)
      print("Succesfully balanced it!")
    end
end
print("AutoFilling tank, from another tank")
while true do
  -- vars
  amount = transposer.getTankLevel(sides.east)
  amo = transposer.getTankLevel(sides.north)

  capacity = transposer.getTankCapacity(sides.east)
  cap = transposer.getTankCapacity(sides.north)
  -- end vars

  someFunction()
 os.sleep(0.5)
end